package com.fangshuoit.web.async;

import org.apache.commons.lang.RandomStringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.context.request.async.DeferredResult;


/**
 * Created by Fangshuo_zhou on 2018/2/3.
 */
@RestController
public class AsyncController {

    private Logger logger = LoggerFactory.getLogger(getClass());

    @Autowired
    private MockQueue mockQueue;

    @Autowired
    private DeferredResultHolder deferredResultHolder;

    /*@RequestMapping("/order")
    public Callable<String> order() throws InterruptedException {
        logger.info("主线程开始");
        Callable<String> result = new Callable<String>() {
            @Override
            public String call() throws Exception {
                logger.info("副线程开始");
                Thread.sleep(1000);
                logger.info("副线程结束");
                return null;
            }
        };
        Thread.sleep(1000);
        logger.info("主线程返回");
        return result;
    }*/

    @RequestMapping(value = "/order")
    public DeferredResult<String> order() throws Exception {
        logger.info("主线程开始");
        //随机生成一个订单号
        String orderNumber = RandomStringUtils.randomNumeric(8);
        mockQueue.setPlaceOrder(orderNumber);
        DeferredResult<String> result = new DeferredResult<>();
        deferredResultHolder.getMap().put(orderNumber, result);
        logger.info("主线程结束");
        return result;
    }
}
